Looks like Cointerra might be late -
https://bitcointalksearch.org/topic/m.3772940 - meanwhile Hashfast are still late and BFL are just being BFL plus the Bitfury chips sold out didn't they. Maybe the Neptunes will ship before the other major 28nm manufacturers ship en masse? I've not read much on ASICminer tho?
Your link provides no evidence that cointerra will be late, just that their customer support is at least as poor as almost any bitcoin related company. Tape out was late though, so its certainly possible they wont hit december, but from there to being beaten by KnC's 20nm product is quite a stretch. Same actually goes for HF, but I'll grant you BFL
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BTW, I want to go on record predicting KnC will turn in to another Avalon, with general praise for their first batch/gen being roughly on time and more profitable than hoped for, yet failing to deliver on the next batch/gen in time for any chance of profit. The fact they again take preorders when they couldnt possibly need the money, for a product based on a technology node no one else has shipping products for, Im not even aware of any announced products (not just bitcoin, I mean any asic) , should make you think twice. Im not saying 20nm isnt possible, it certainly is, but its not a mature, tested and well understood process like 28nm and I would take any timetable with a bucket of salt. Its not gonna happen in Q1 and most likely not before the end of Q2. And it wont be profitable (btc denominated).